Self-suctioning piston engines

Abstract

Self-suctioning apparatus for multi-cylinder piston engines uses a tube-like pipe system extending from the manifold of the engine and includes a diverter for dividing the waste gas stream into several partial streams with the diverted waste gas streams being reflected and focused on an inner wall of the pipe system to form a zone of hot waste gases which are received by a nozzle system with no waste gas flow reversal to provide an uninterrupted suctioning effect and a continuous gas flow with a higher degree of air charging and an exit tube receiving the continuous gas flow for discharge into the ambient.

What is claimed is: 
     
       1. Apparatus for the discharge of waste gases in multicylinder piston engines, comprising: an exhaust path of a tubular line shape for maintaining separate the discharge of each of the individual cylinders of the multicylinder piston engine, each exhaust path including an outlet;   an exhaust nozzle with an end portion formed by one of the outlets and sloping walls diverging from said end portion to another end portion terminating in a conical narrowing portion and the remainder of said outlets being spaced along the longitudinal axis of said exhaust nozzle extending between said end portions; and and   a pipe interconnecting said conical narrowing portion, and a muffler.   
     
     
       2. Apparatus as claimed in claim 1, wherein the cross section of said exhaust nozzle at the outlet immediately adjacent said one outlet is twice that of the cross section at said one outlet, the cross section of the next adjacent outlet is three times the cross section of said one outlet and the cross section of said exhaust nozzle keeps increasing in the same ratio for the remaining outlets. 
     
     
       3. Apparatus as claimed in claim 1, wherein each of the exhaust paths includes a bundle of pipes for diverting the exhaust gas stream and a chamber downstream of said bundle of pipes and having converging walls and positioned such that the diverted exhaust gases from said bundle of pipes are focused by reflection on said converging walls to increase the temperature of said exhaust gases. 
     
     
       4. Apparatus as claimed in claim 2, wherein each of the exhaust paths includes a bundle of pipes for diverting the exhaust gas stream and a chamber downstream of said bundle of pipes and having converging walls and positioned such that the diverted exhaust gases from said bundle of pipes are focused by reflection on said converging walls to increase the temperature of said exhaust gases.